SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492016-12-09T08:37:11-07:00SparkFun Electronicsbboyho on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)bboyhourn:uuid:248ddaf3-f9df-bd93-763b-cb979cb1219d2016-03-14T13:07:09-06:00<p><strong>&mdash;&mdash;&mdash;&mdash;&mdash;&mdash;&ndash; Tech Support Tips/Troubleshooting/Common Issues &mdash;&mdash;&mdash;&mdash;&mdash;&mdash;&ndash;</strong></p>
<p>The current wire colors on the temperature sensor should be:</p>
<pre><code>RED=Vcc
BLACK=GND
WHITE=SIG
</code></pre>
<p>Previously, the wire colors indicated a different connection => <a href="https://www.sparkfun.com/products/11050#comment-52a60f8cce395f052a8b456a" rel="nofollow" >https://www.sparkfun.com/products/11050#comment-52a60f8cce395f052a8b456a</a> .</p>
<p>We also don’t have any information on the temperature rating of the round plastic temperature cover that it can handle. We have not tested it under those conditions before. I tried looking at the manufacturer’s page and it doesn’t look like they have tested it under extreme conditions.</p>water_arduino on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)water_arduinourn:uuid:7e1393bd-b542-11ed-30b1-ccc576982bd62015-08-08T15:43:57-06:00<p>I am having the same issue with all of the tutorials I have found
Here
http://www.hacktronics.com/Tutorials/arduino-1-wire-address-finder.html
and here
http://bildr.org/2011/07/ds18b20-arduino/</p>
<p>Did you figure it out? Thanks!</p>water_arduino on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)water_arduinourn:uuid:1f14a515-d0d5-5b50-1b9f-4809347382092015-08-07T16:18:21-06:00<p>I was wondering if anyone could help explain to me how to hook this temperature probe up to a zigbee using a 4.7K pull up resistor and connecting it to a digital input? Or guide me to an online discussion that I can&rsquo;t find on this probe?</p>
<p>I have it hooked up to a 3.3V power source, then to pin 19 digital input D1(3) setup for digital input on zigbee. I am trying to read the signal, but all it says in processing is &ldquo;high&rdquo; or &ldquo;true&rdquo;. Thank you.</p>Customer #619712 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #619712urn:uuid:acd34091-31ea-1a3d-ed19-60bb049bd6222015-06-05T12:49:38-06:00<p>I got 5 of these and Having issues getting them to work. I&rsquo;ve tried about 10 different tutorials.</p>
<p>Using both arduino Uno and Mega
I have my red wire connected directly to my board 5v. black to board Gnd. white to digital pins (tried them all) and a resister soldered between 5v and signal. all the address finders for one wire say no addresses found. any suggestions? I know I didn&rsquo;t fry any cause I tried all of them.</p>Dave6 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Dave6urn:uuid:5d57c920-0d3e-b49d-c4b6-9c380af624062015-04-13T12:44:49-06:00<p>Any issue(s) with burying these in soil?</p>Boblehai on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Boblehaiurn:uuid:745ba70f-7e19-9eae-bf00-342ab9a2593b2015-02-03T14:29:25-07:00<p>Hi all. I am using this one outside where it is normal with subzero temperatures. When it gets colder than around 1 degree celcius, the sensor starts to be i accurate. It shows temperatures that is higher than it really is. Right now it is -8. My sensor shows -2. Any experiences? I have The sensor is connected to a breadboard-arduino uno - usb to pc.</p>Customer #105863 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #105863urn:uuid:437c9fe7-16d8-30eb-91e5-f98dfdf2140f2015-01-18T19:18:51-07:00<p>Are the three wires standard gauge? If so, does anyone know what gauge? Thanks.</p>Customer #488664 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #488664urn:uuid:d5305bb6-d812-c83e-fe09-6f1f064b09232014-12-18T19:32:50-07:00<p>&ldquo;Think warm thoughts boy, this sensor&rsquo;s mighty cold&rdquo;</p>rcox on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)rcoxurn:uuid:702c1e5e-587a-5404-e8fc-f73eee12d3842014-08-24T21:07:15-06:00<p>We&rsquo;re seeing accuracies that are more like +/-1.5-3.0 C even in the mid-range of this device. Still working out if that is linear. Using a thermo pen, magnetic stirrer thermocouple, and infrared thermometer as baselines.</p>Customer #475033 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #475033urn:uuid:79c629bc-d383-8b63-2a4c-7f896db98ccf2014-07-22T19:33:41-06:00<p>Unfortunately Jacket insulation around the sensor can&rsquo;t stand up to repeated strain above 200 degrees Fahrenheit. Seems stupid these things can report back temperatures greater than what the insulating material is rated for. Useless for my application unfortunately.</p>Customer #563579 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #563579urn:uuid:0aa7a3e9-c71f-3f45-0462-eef588dcfe902014-07-10T19:35:40-06:00<p>Can it used in seawater? Material?</p>Customer #503050 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #503050urn:uuid:f39c08d7-69e9-fab3-b49b-517c4a6d7c1a2014-05-04T16:27:23-06:00<p>Mine do that when the connection is loose.</p>Customer #517495 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #517495urn:uuid:faddfe38-d70c-bc17-6e27-2af5d9b29ce32014-04-22T21:34:09-06:00<p>I am having some issues where I read -127C from one of these, anyone have any idea why this might be happening? I am using the latest one wire and dallas lib&rsquo;s&hellip;</p>Customer #517495 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #517495urn:uuid:838bdae2-7cb8-883a-5bb0-efb7e1d6cac52014-04-18T07:23:39-06:00<p>Does anyone know why all of a sudden this sensor would start, seemingly at random, report -196.6F (after conversion) then bounce back to normal, about 77F. I changed nothing in the code of my Arduino or the circuit. Perhaps the device is going bad? Any thoughts?</p>Customer #411091 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #411091urn:uuid:7e1ac4e3-b434-2b2e-4e97-395d47b8522a2014-04-07T08:11:50-06:00<p>I currectly own a couple of these sensors and I&rsquo;m looking to acquire a couple more for high temp measuring (aprox 100 degrees celcius)&hellip; Can the material of the sensor handle this temp? I see the details specify 125 max but dont know if its been tested and stressed at these levels?</p>Customer #527648 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #527648urn:uuid:1832db29-4cb6-12bd-e357-1870418e5b2d2014-03-05T12:29:58-07:00<p>Can this sensor handle being frozen in a block of ice and monitor temperature during that time? Min temperature will be about -15 C, one degree accuracy is fine.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:b52ae62b-a061-22f6-81a4-658d38cddbe12014-01-31T14:38:54-07:00<p>Google Arduino and the sensor type (DS18B20) and you&rsquo;ll find lots of information on how to do this.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:fc59100b-1521-1d52-1b48-3c25841374182014-01-31T14:37:28-07:00<p>Not mine, but if you have a willing subject, I don&rsquo;t see why not.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:a596df7f-fb87-ca18-c4be-d318e384b8462014-01-31T14:36:53-07:00<p>I would personally not worry about using it in food, but you may feel differently. Elsewhere in these comments a customer links to a stainless-steel version which may be more appropriate for your application.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:b126cedb-7a89-6c6c-059d-4dd17293def82014-01-31T14:29:30-07:00<p>Not mine, but if you have a willing subject, I don&rsquo;t see why not.</p>Customer #515447 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #515447urn:uuid:361d9dfc-fdf2-6280-851d-bc4cf1152b3b2014-01-30T20:18:38-07:00<p>This ain&rsquo;t food safe, right? I need it for some small wine tanks. Actually I wanted Atlas Scientific&rsquo;s, but got this one.</p>Joel_E_B on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Joel_E_Burn:uuid:4d5fa4d9-fbe6-c97c-2411-8dcceb6f324d2013-12-09T11:44:28-07:00<p>I grab a newer version, and you&rsquo;re correct. There may have been some inconsistencies in the wire colors inside the cable. The older version I had definitely worked with the colors I mentioned above. But, the new one fried and swelled up when I tried the pinout I previously mentioned. Trying a second unit revealed that RED=Vcc, BLACK=GND, and WHITE=SIG.</p>Customer #39722 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #39722urn:uuid:df94182c-d872-b8aa-bfd8-3e9c568ce9702013-12-09T00:23:21-07:00<p>Doh. I tried Black = 5V, White = GND, Red = Signal and mine went up smoking.</p>
<p>I had previously used &ldquo;black wire is GND, the red wire is VDD, and the white wire is DQ&rdquo; &ndash; which worked for me &ndash; but I ripped my connections out before realizing I hadn&rsquo;t written them down. When I looked them up another time, I followed the 2nd set of advice that didn&rsquo;t coincide with my device.</p>
<p>Why isn&rsquo;t this data part of the description? ugg&hellip;.</p>Customer #425531 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #425531urn:uuid:9f642c26-b6ea-bf0c-9b26-4727574cfd6d2013-11-20T18:50:16-07:00<p>can this be interfaced with an arduino pro micro? if so, how.</p>Customer #477554 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #477554urn:uuid:ce9abd17-e541-6a8a-0768-c0a9db3341632013-10-11T03:15:17-06:00<p>It can be used to measure human body temperature?</p>Joel_E_B on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Joel_E_Burn:uuid:37eb0bea-99a3-0952-aa14-8e81e375e0d92013-07-26T19:28:28-06:00<p>For anyone having trouble with the pin out, the few of these I&rsquo;ve used had the colors on pins you wouldn&rsquo;t expect. The pin out: Black = 5V, White = GND, Red = Signal. Not sure if this is an inconsistency with the manufacturer or if that is the pin out on all of these. I physically cut one of these open to confirm this. If you are having trouble, give this orientation a shot.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:8d92ea45-afdf-d902-1cb3-26beafb2c5a52013-06-25T11:10:34-06:00<p>This is not an analog sensor like the <a href="https://www.sparkfun.com/products/10988" rel="nofollow" >TMP36</a>. This sensor has a &ldquo;1-Wire&rdquo; digital interface, which requires the host system to send it a special digital command sequence to get the temperature reading, which will also be a digital sequence. Read through the links and comments to learn how best to interface to this sensor.</p>Customer #449490 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #449490urn:uuid:83538105-5021-63ee-e93d-684b2a3b9fc92013-06-25T10:29:51-06:00<p>I would like to know if this sensor could be connected to a phidget 8/8/8 as a simple analogic sensor?
I already have the env-tmp made by Atlas scientific and it looks like the sensor must be told to send data rather than it maintains an analog voltage all the time. The procedure is turn on a digital port for millisecond, read the associated analog port, then turn off the digital port. The digital port supplies the 5 volt signal to excite the sensor. That seems I have to connect both on a digital and analog inputs and it isn&rsquo;t convenient to me. I just would like an analogic sensor and nothing else.</p>
<p>Otherwise, I&rsquo;ll have to buy an other sensor for my project, something I could directly connect on an analogic interface. So maybe this reference : DS18B20 could be ok with the phidget. Any feedbacks are welcomed!</p>6strings on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)6stringsurn:uuid:8ebec770-6fa2-3832-2a98-6581d46085d12013-04-20T16:20:58-06:00<p>Yes it does. You can place the pullup at the Arduino or close to it, between 5V (or 3.3 if your Arduino is 3.3V) and the DQ pin of the sensor. This sensor works very well. It is stable even with a longer cable.</p>
<p>My first application used the TMP36. I quickly abandoned that sensor. While it is good for monitoring a temperature inside an enclosure, it is too susceptible to noise when remote. The DS18B20 on the other hand is awesome for remote sensing and is offered in a nice probe for you. All that extra code is well worth it.</p>Darian C on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Darian Curn:uuid:2160b2c4-4ca7-4e78-290e-66fa97751bb82013-03-22T21:51:57-06:00<p>Accuracy and resolution aren&rsquo;t the same thing. Good to know it&rsquo;s fast and responsive though.</p>Customer #379152 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #379152urn:uuid:db6a2c48-96a7-c456-f24a-987413b5f5162013-02-28T13:17:00-07:00<p>Ok, this has been asked twice in the comments, but I can&rsquo;t find the answer. Does it need the 4.7k pull-up resistor?</p>Customer #379152 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #379152urn:uuid:0fed259c-64d5-7d34-bee1-9a1b55886caf2013-02-28T12:37:08-07:00<p>Opps just learned that this is a digital sensor. Lets drop it on a free digital pin and see what happens.</p>Customer #379152 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #379152urn:uuid:f23b729b-70da-a54c-c748-340f9c6a293c2013-02-28T12:33:29-07:00<p>I can&rsquo;t make this work with my Arduino. I have the red wire on 3v, the black on Gnd, and the white on A1. I have also have a TMP36 on A0 wired the same. With my meter, I am getting 3.3v at the solder point but nothing on the white wire. The TMP36 gives me about 0.7v. Did I do something wrong? Do I have a bad sensor?</p>Customer #333852 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #333852urn:uuid:f966dcd6-5818-bd77-bfbf-829ff7d3db182013-02-15T01:21:17-07:00<p>I have had one of these in my spa pools solar panel for about three months and it has failed. It is stuck reading 85C, power is still good at the start of the cable so assume something has broken down inside the probe. More info on error here http://www.picaxeforum.co.uk/archive/index.php/t-20929.html (post not by me). Pool has a small amount of chemicals in it, but panel can and does occasionally boil the water when the pool is at the set point. Assume this caused the problem - annoying since 125 is the range! My probe is stainless now plastic as shown in the picture.</p>Customer #406149 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #406149urn:uuid:506fdae3-466d-3db2-18ba-231a2fc49ce82013-02-06T00:47:49-07:00<p>can I know if this sensor can be used to measure the human body temperature plz?</p>Customer #399340 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #399340urn:uuid:eb42b8a7-c6bd-8d10-e0c9-4bdb59ec5c8e2013-01-19T18:22:30-07:00<p>&ldquo;-55°C to+125°C temperature range&rdquo;</p>
<p>i see that as rating for the DS18B20, but what about the wire jacket/insulation?</p>KDodman on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)KDodmanurn:uuid:ae818930-d6de-c804-954e-fc718aba629c2013-01-17T19:42:51-07:00<p>Just hooked this thing up. Took only a couple minutes, and works great. For those who dont think its accurate enough, it comes defaulted at 12 bit resolution which equates to 0.0625°C increments. You can blow on the thing and watch the temp change.
I&rsquo;m going to be using it in my saltwater tank shortly, I&rsquo;ll post an update when I do.</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:43ce2afb-4e9e-b499-2c1d-10d9ec89b0582013-01-08T15:04:05-07:00<p>1-wire devices are designed for long networks (hundreds of meters) so you&rsquo;re most likely fine. Do read the datasheet for interfacing information; Dallas/Maxim also have <a href="http://pdfserv.maximintegrated.com/en/an/AN148.pdf" rel="nofollow" >application notes</a> on best practices for reliable networks.</p>Customer #396501 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #396501urn:uuid:184d249f-467c-d8bf-f5ec-6e6763556aff2013-01-08T14:29:01-07:00<p>I want to bury it 2 meters deep into the ground to measure the temperature near my water pipes - how long can I make the cable without affecting the accuracy of measurements? I&rsquo;m going to connect it to raspberry PI - will I need a power supply for the sensor or something if the wire goes around 6 meters? Silly question, I guess. Does it include the 4.7K resistor?</p>Abalam on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Abalamurn:uuid:4308b0b2-e868-5073-a933-d9326caa42122012-12-05T05:03:43-07:00<p>You can read in the datasheet that the resolution can be better : &ldquo;The resolution of the
DS18B20 is configurable (9, 10, 11, or 12 bits), with 12-bit readings the factory default state. This equates to a temperature resolution of 0.5°C, 0.25°C, 0.125°C, or 0.0625°C.&rdquo;
The 12 bits needs 750ms to be done&hellip; but it&rsquo;s ok for me.</p>Customer #104092 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #104092urn:uuid:154b06b3-b457-9f22-6f06-b5832721dd7c2012-11-02T08:53:36-06:00<p>Forgot to ask this when i bought it, but is this safe to use in food production? What type of plastic coating is it PP? There is nothing about it in the data sheet.</p>sandbeda on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)sandbedaurn:uuid:0ab1ba32-757c-ebb7-3cf6-9a0cb3cab78b2012-10-26T17:30:56-06:00<p>Atlas Scientific sold me a faulty pH stamp last year, costing me almost 2 full days of work, and then promised to send me a free EC stamp to make up for it (but did immediately replace the faulty pH stamp). They kept claiming the EC stamp was out of stock until they quit returning my emails. I just contacted another staff member though and he says he will send me the EC stamp.</p>Customer #371924 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #371924urn:uuid:27727f8d-20bc-661b-7a37-bf5be5aeb12c2012-10-21T20:21:09-06:00<p>Hi, just wondering if you have had any luck implementing this probe with a Libelium Waspmote? Any help would be appreciated. I took a look at the mbed example, but not sure it works with the Waspmote. Might be wrong. Thanks!</p>Erroneous on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Erroneousurn:uuid:17759069-fe16-f154-005d-e1f2a63b0f832012-07-27T08:09:22-06:00<p>I&rsquo;m curious as to how accurate you need it for aquariums. If anything you could always stick it in water that you already know is the right temp and measure what the sensor reads. I&rsquo;ve used these in my fermentor refrigerator for about a year. While they may be off by up to 0.5 C, I consider it more accurate than all but one of my thermometers and they certainly don&rsquo;t fluctuate IME.</p>whitnasty on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)whitnastyurn:uuid:7e2c2209-be51-1401-37b0-ae9046ddd7ad2012-07-20T15:53:39-06:00<p>I have been using these for a while without any decoupling and they work great, the only thing you need is a 4.7k pull up tied between the power and data line. Very accurate little sensors as well.</p>MaxRathbone on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MaxRathboneurn:uuid:af51ad89-9504-283b-0c22-cdcdb44cd72a2012-04-18T17:29:20-06:00<p>http://atlas-scientific.com/product_pages/sensors/env-tmp.html</p>
<p>Here is one that can be used in hydroponics, food, and laboratory equipment. Sparkfun should stock this.. they already stock the pH kit from this company.</p>Customer #226251 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #226251urn:uuid:448a3b82-ed77-ed04-1a39-a2a5aaa741922012-03-31T12:34:18-06:00<p>thanks.</p>Ducky Virus on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Ducky Virusurn:uuid:06ae0d8d-0e22-f346-4398-23d46ce3bedd2012-03-01T08:44:57-07:00<p>mmmm kegerator&hellip; my issue is the health of the livestock, not me.. but i did come up with a way to safely use it via 1way overflow :)</p>fugalster on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)fugalsterurn:uuid:e207a848-7ca2-6e73-f559-7eba7f00af052012-02-24T20:16:37-07:00<p>I just purchased one specifically for sous vide. Where the food is contained in a sealed bag and the probe is not, I don&rsquo;t see it being a problem.</p>syndicated on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)syndicatedurn:uuid:95d1bed9-43f6-a651-1e32-28c25d79f5c82012-02-06T19:03:51-07:00<p>FWIW, I&rsquo;ve had a DS18B20 in my kegerator (~5C) for about 2 years.</p>
<p>You can always use thermocouples&hellip;</p>julienj on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)julienjurn:uuid:0a184e84-92e0-35ab-9f7d-6e9ecfe173d52012-01-21T11:30:11-07:00<p>I made the assumption and it works. You would be correct.</p>Glider_Diver on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Glider_Diverurn:uuid:5a5b167a-515f-9f34-97b1-c304805af4822012-01-20T11:38:51-07:00<p>Hmmm&hellip;. I <em>assume</em> the black wire is GND, the red wire is VDD, and the white wire is DQ? I can&rsquo;t find that data anywhere.</p>Customer #292652 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #292652urn:uuid:428ab41e-6238-bcfe-40ce-2f5c6e0feafd2012-01-19T13:33:38-07:00<p>Definitely interested in this. Even if it&rsquo;s not food safe, would it be suitable for an application like Sous Vide where it is near food, but not directly in contact with it?</p>
<p>Also, does it already have the 4.7k resistor on the data wire?</p>brewer on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)brewerurn:uuid:bf6065af-81bd-dba0-f093-b454e66aa4f52012-01-18T15:13:36-07:00<p>Not likely to be food safe, especially at elevated temperatures.</p>
<p>I&rsquo;m surprised you guys didn&rsquo;t all know about these stainless steel versions (maybe this means Sparkfun should sell them?). See stainless probes at: http://www.brewershardware.com/BCS-460-Temperature-Sensors/</p>
<p>(As an aside, BrewTroller was THE reason I got into electronics and micros&hellip; but for some reason, I haven&rsquo;t finished sourcing all the parts for BT, lol.)</p>Ducky Virus on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Ducky Virusurn:uuid:c9c84580-e09d-cecc-de47-096d0cd2e6be2012-01-16T05:09:28-07:00<p>Was considering this for my saltwater controller, but it doesnt seem sensitive enough, nor is there any details on the casing making it impossible to consider. however, when taking apart a dead heater i found the same IC controlling it. maybe that&rsquo;s why the $90 heater died only 4months after installation. anyone know of a better solution?</p>Erk on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Erkurn:uuid:082c0f96-bb61-3f51-da4d-5ef5add123732012-01-14T14:50:09-07:00<p>By the looks of it, its non-shielded cabling.</p>Hrafnkell on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Hrafnkellurn:uuid:69ddddea-b7cd-870f-9cdb-067a94664ebd2012-01-14T13:13:13-07:00<p>Made my own using <a href="http://www.sparkfun.com/products/107879" rel="nofollow" >Sugru</a> to seal the sensor.</p>DeadlyFoez on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)DeadlyFoezurn:uuid:a6203906-d2c4-32f4-b2fc-1520a061927d2012-01-14T10:44:50-07:00<p>+1 I&rsquo;d like to use this in my hydroponics setup.</p>SlyVixsky on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)SlyVixskyurn:uuid:38fa0327-5e91-5b7e-628d-69d09efe788a2012-01-14T03:12:08-07:00<p>My current thoughts are leading to those recent &ldquo;Flex-Seal&rdquo; commercials :D glad there&rsquo;s a pre-built solution available :)</p>LouisT on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)LouisTurn:uuid:acb18499-ecea-b337-6da7-dd2fbf18ffcb2012-01-13T19:25:44-07:00<p>What is the tip made out of? Some kind of epoxy?</p>MikeGrusin on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MikeGrusinurn:uuid:5ca25fb3-5bd6-e3ed-5320-11178ababb5e2012-01-13T17:47:00-07:00<p>One-wire devices should not need decoupling capacitors in general, at least not according to the application notes I&rsquo;ve read. In fact, if you&rsquo;re using it in two-wire (parasitic power) mode, capacitors would be detrimental. Why do you ask?</p>MyUsualAliasWasTaken on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)MyUsualAliasWasTakenurn:uuid:39727213-ffb1-3b74-7459-5ab11b25185e2012-01-13T16:04:19-07:00<p>There&rsquo;s probably an MSDS available for the envelope material.</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:4e7557cc-9bd2-5395-f5d8-e73160d09d602012-01-13T15:05:50-07:00<p>Lol did you expect anything different?</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:cf68b2fb-a2b6-9d9c-c596-0edd309ff35b2012-01-13T14:51:16-07:00<p>Ohh my. I was under the assumption this was decoupled. I&rsquo;m sadface now. Can the bulb at the end be easily removed and then decoupled, replaced, and resealed with food safe waterproofer easily? Better yet. Just tell me IT IS decoupled.</p>RobertC. on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)RobertC.urn:uuid:cfce8b56-e821-001b-566e-6487ffd91d5a2012-01-13T14:48:38-07:00<p>ugh, this is getting more and more complicated. I&rsquo;m not sure how to easily test that one.</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:82f940f8-b9af-921d-4c5c-bf25487423782012-01-13T14:47:51-07:00<p>More or less when it does break down, what is released? Is it safe for us (remembering the brewmeisters from above)?</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:c48772f0-d8a2-0de0-f024-2305825886ca2012-01-13T14:45:58-07:00<p>I don&rsquo;t believe this is accurate enough to be used as a sensor for &ldquo;controlling a tank heater&rdquo; as there is too many to consider and catastrophe could result. For my marine environment its simply to be used as a general reference/log/arm. The more you automate a reef, the more things that can go wrong. And when something goes wrong it costs more than I spend on gas in a year.</p>Customer #281296 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #281296urn:uuid:44f803bf-af40-7668-f89e-0037434f7cc92012-01-13T14:12:09-07:00<p>+1 on this. homebrew application. food safe?</p>EvanTeitelman on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)EvanTeitelmanurn:uuid:d4bb285a-aa2c-98a4-d590-c475e1130d242012-01-13T12:24:57-07:00<p>Decoupling it at the sensor end would most likely ruin the waterproof seal.</p>EvanTeitelman on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)EvanTeitelmanurn:uuid:3bd45585-a2d1-fb10-ca32-e39672d84f4a2012-01-13T12:23:24-07:00<p>You could cover it with a long and thin cellophane bag.</p>Blacklab1 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Blacklab1urn:uuid:1b099f5e-fd2e-7051-1168-d27edb8f70062012-01-13T11:52:54-07:00<p>Yeah! That would be really cool if we can use it in Salt Water Fish TANKS! (OR fresh water Tanks!) Though I would be worried using it with the Discus- they can be real temperamental with 1 Deg F change</p>two taco on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)two tacourn:uuid:7547a751-b225-fdcc-444b-2a3dbb9dd9662012-01-13T11:51:40-07:00<p>I&rsquo;m glad someone is asking this, because it was my first application thought as well.</p>Customer #19067 on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Customer #19067urn:uuid:e3b16f2f-7d00-5441-fbc1-6f09e1a86f912012-01-13T11:24:15-07:00<p>My question exactly - is it foodsafe?</p>
<p>We homebrewers gots to know!</p>RobertC. on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)RobertC.urn:uuid:b13faa5c-674a-cafd-1f09-7a5712620a402012-01-13T10:27:57-07:00<p>hum, good idea. maybe weak bases and acids?</p>dksmall on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)dksmallurn:uuid:04f6c1e3-675a-3d47-0768-f7d63c87e2092012-01-13T10:27:18-07:00<p>Or chlorinated pool water????</p>RobertC. on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)RobertC.urn:uuid:ee08f5a4-8009-4735-fc3e-96ffa0e90ad42012-01-13T09:48:05-07:00<p>We just might have to test that out. I&rsquo;m thinking about putting it in the video for next week.</p>ollyb on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)ollyburn:uuid:6fa966bf-721d-e631-03db-b346d4946d8c2012-01-13T09:35:31-07:00<p>If you were going to decouple this, wouldn&rsquo;t you want the capacitor at the DS18B20 end of the thing, instead of 6 feet away?</p>dustoaction on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)dustoactionurn:uuid:8f5580c6-4372-6876-e032-8f6259c1f16d2012-01-13T06:26:26-07:00<p>I&rsquo;m with you, however, is it food grade or is it going to off gas chemicals into my beer?</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:3c47285c-0bc4-1d63-fac6-e44a2a1cfb242012-01-12T21:59:25-07:00<p>I do as well but I agree this is much much nicer looking than mine with liquid tape and heatshrinking</p>clever on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)cleverurn:uuid:dd09a716-9de8-f504-1198-f147f352f9622012-01-12T20:20:09-07:00<p>nice!!!</p>
<p>already made one with just plain heatshrink and caulking
but this looks much better!</p>Cjhazdroid on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Cjhazdroidurn:uuid:ac4ba5c4-992f-b447-4c41-1474e1da34752012-01-12T17:23:03-07:00<p>Nice! Was just about to checkout when I saw this. How well does this hold up to harsh environments (ie salt water)?</p>Leland Sindt on SEN-11050 - Temperature Sensor - Waterproof (DS18B20)Leland Sindturn:uuid:2af41736-9268-a15e-73ff-d1a98b2eea172012-01-12T15:57:31-07:00<p>#mashtunmonitor +1</p>